Draw works



March 20, 1928.

H. B. ZIEGLER DRAW WORKS Filed Auz. 8, 1925 '3 Sheets-Sheet 2 B. ZzgkmwmATTC RN EY WITN March 20, 1928. 7 1,663,431

a H. B. ZIEGLER DRAW WORKS Filed A111. 8, 1925 3 Sheets-Sheet 3 H5, ZZZfly?" VENTOR WITN W ATTORNEY Patented Mar. 20, 1928,

hurra stares rA'rsn-r orrica.

HAROLD 3B. ZIEGLEB, 01* DUNCAN, OKLAHOMA.

DRAW WORKS.

7 Application filed August 8, 1925. Serial No. 49,046.

.drums and means for driving the drums either separately or jointly atvarying desired speeds in accordance with the speed and power requiredin the drilling operaa tion, the said driving means being under theinstant control of the operator so that less delay will be occasioned inthe drilling than is common with ordinary devices for a similar purpose.

A further object is the provision of a draw works with twin drums havingthe ends of the pull line attached thereto and means for locking eitherof the drums on a common shaft whereby the line on the locked drum isemployed as a pull or working line and that on the other drum as a deadline, means being provided for holding the last mentioned drum fromturning means bein further provided for locking both of the rums on theshaft, whereby both ends of'the line may be used as a pull or fast line,while means, under the immediate control of theoperator, is provided forimparting varying desired spleedsto the drum carrying shaft.

A furt or object is theprovision of a draw works having twin drumsthereon and on which the res ective ends of the lines or cables aresecure and inwhich said drums are susceptible to a power range of agreat number of speeds at the will of the operator without delay in theoperation; wherein the drill line may be easily fed off of one onto theother drum so that well spooled lines are at all times insured andthereby prolonging the life of the line, and further wherein both endsof the line maybe pulled onto one drum, baring the other for the sandline and using an idle pulley in the traveling block for the crownpulley.

A still further object is the provision of an apparatus for this purposein which friction between cooperatingparts is reduced to insure thelonger life thereof and as a consequcnce enablingthc operator to use alighter and less expensive traveling block with equal efficienoyijandfurther wherein the rig, while of a" comparativelysimple construction isproperly balanced without in- -77 of Figure 5.

creasing the size or adding to the weight of the parts thereof.

To the attainment of the foregoing, and many other objects which willpresent themselves as the nature of the invention is better understood,reference is to be had to the drawings, in which there is illustrated asatisfactory embodiment of my improvement as it now appears to me, itbeing understood that the said drawings are merel illustrative and thatI may resort to sue changes therefrom as fall within the scope of what Iclaim.

In the drawings I Figure 1 is a side elevation of a draw worksinaccordance with this invention.

Figure 2 is a sectional view on the line 2 2 of Figure 1.

Figure 3 is a sectional View on. the line 3-3 of Figure 2.

Figure 4 is a sectional view on the line 44 of Figure 1.

Figure 5 is a sectional view on the line 5-5 of Figure 2.

Figure 6 is a' detail sectional view throu h a portion of the brake'bandoperating Inee anism. Figure 7 is a sectional 'view on the line Figure 8is a detail perspective view looking toward one end of the body memberof one of the drums.

The inside head boardof the frame of my improved draw works is indicatedin the drawings by the numeral 1. The end jack posts are indicated bythe numerals 2, and the central jack 0st by the numeral 3. Journale'clin suite le bearings in the jack posts there is the line shaft 4. Theline shaft has on its ends the usual cat heads 5.

Fixed on the line shaft 4, inward of the jack posts 2, there aresprocket wheels 6 and 7 respectively. The sprocket wheel 6 is largerthan the sprocket wheel 7, the said wheel 6 carrying 13. teeth, "Whilethe sprocket wheel 7 carries 11 teeth.

Loosely arranged on the line shaft there is another sprocket wheel 8.This wheel8 is held from longitudinal movement on the shaft in onedirection by the contacting engagement thereof with a sleeve 9 that isfixed on the same line shaft. The sprocket wheel '8 has trainedtherear'ound an endless chain lid In addition to the sprocket wheelsabove described, there is freely mounted on the shaft between the lefthand jack-post -2 and the central post 3 of the frame, two othersprocket wheels, indicated by the numerals and 11, respectively. Thesprocket wheel 10 is of a materially greater diameter than the sprocketwheel 11, and both-of these wheels have trained therearound chains thatare connected to the engine, (not shown). The sprocket wheels 8, 10 and11, have outwardly extending hubs 12, 13 and 14, respectively. The hubshave their outer faces notch d for-engagement with lugs 15, respectivelyformed on the faces of slidable clutch members 16 1 7 and 18,respectively. The slidable cliitc h members are mounted in splines onthe line shaft, and are cylindrical in cross section, with peripheralgrooves in which are seated ring members 19 that are straddled by theforked ends of levers 20, 21 and 22, respectively. Each of the rings 19is provided with oppositely disposed outwardly directed studs that passthrough elongated slots in the forked arms of the levers. The lever 20is pivot'ally supported on a bracket 23 secured on the inner face of theright hand jack post 2, while the levers 21 and 22 are pivotellysuspended from the head board 1'. The levers 21 and 22 are pivotally'connected to a rod 24, the outer end of'the rod, in turn, being pivotedto an operating lever 25 which depends from and is pivotally secured tothe head board 1. The swinging of the operating lever 25, in onedirection will cause the lug 15 on the clutch 18 to be received in thenotched hub 14 of the sprocket wheel 11, this swinging of the leverswinging the clutch member 17 farther away from the hub 13 of thesprocket wheel 10.. A reverse swinging of the lever 25 will bring theclutch member 17 into clutching engagement with the hub 13 of thesprocket wheel 10 and move the clutch member 18 not only out ofbut adistance away from the notch in the hub 14 of the sprocket wheel 11. linthis manner it' will be noted'that a confusion in clutching the sprocketwheels to the line shaft will he obviated. The lever 20 is centrallypivoted to the bracket 23 and has loosely connected to its upper andouter end a rod 26. The rod 26 has its outer end provided with s )acedopenings through any one of which there is passed 'a pivot that alsopasses through "the end of an operating lever 27. The lever is pivotedto the head board 1 but has its handle disposed adjacent to that of theoperating lever 25. The swinging of the lever 27 in one direction willmove the clutch block 16 to lock the sprocket wheel 18 on the line shaftand the swinging of the lever in an opposite direction releases theclutch 16 andfrees the sprocket wheel.

Journaled in suitebleibearings below the master line or drive shaft 4,on the o posite sides of the posts on which the bearings for the saidline shafts are secured there is a driven or drum shaft 28. Looselymounted on the shaft 28, directly inward of the end jack posts 2, thereare sprocket wheels 29 and 30, disposed in alignment with the respectivesprocket wheels 6 and 7 on the shaft 4. The sprocket wheel 30 ismaterially larger than wheel 29 and has 36 teeth thereon while thesprocket wheel 29 is provided with 27 teeth. Trained around the sprocketwheels 6 and 29, there is an endless chain '31, and likewise trainedaround the sprocket wheels 7 and 30, there is a similar-chain 32. 8dSuitable meansare provided for holding the sprocket wheels 29 and 30from longitudinal movement on the shaft 28.

The sprocket wheels 29 and 39 have their inner or confronting endsprovided with 85 hubs having clutch surfaces 33 and 34, respectively.These clutch surfaces are designed for engagement with clutch surfaceson slidable blocks 35 and 36, respectively, and the said blocks aremounted in splineways on the shaft 28.- The clutch blocks or members 35and 36 are round in cross section, and are provided with peripheralgrooves in which there are seated ring members 37 and 38, respectively.These rings are straddled by the forked ends of levers 40 and 41,respectively. The rings are provided with oppositely disposedoutstanding lugs that arereceived through slots in the arms at theforked ends of the said levers 40 and 41. p

On the base 42 that supports the post 2 and 3 there are securedupstanding brackets 4-3 and 44-, respectively. Eaclf'bra'cket has awidened laterally extendin head 45, and to the laterally extendingportion on one end of each of the heads'there are pivoted levers 40 and41. The lever 40 has an angle end to which is pivoted a link 45. Thislink 45' in turn is pivotally secured to a foot pedal at which has oneend pivotally supported on the base 4-2. To the lower end of the lever4-1 there is pivotally secured a rod 4-7 directed toward the left handside of the frame. and this red is pivoted to the offset end of a crankshaft 4-8 which is journaled in a suitable hearing as. and has one ofits ends extended angularly to provide a foot pedal 50.

Pressure on the foot pedals lid 46 59 willactuate the levers 40' and 4&1to throw the clutch blocks 35 or 36 into clutching engagement with theclutch snrfacescn the sprocket wheels 29 or 39., and thereby lock the125' either one of the said sprocket wheels shaft 28.

Arranged for the shaft 28. and

These clutch blocks have their clutch surfaces directed toward eachother, being disposed opposite t5 the clutch surfaces on the blocks and36. The clutch blocks 51 said levers -55 and 56 which "are-pivotallysecured to the inner lateralextensions of the heads of the brackets 43and 44, the

lever 56 having pivoted to its lower end a rod directed toward the left.hand jack post 2, the said rod having its free end pivotally secured toan, oflz'set or crank shaft, similar to the shaft 48. This crank shaftis also journaled in suitable bearings on the base 42 and has an outerangle arm terminating in a foot pedal 57. By depressing'the foot pedalthe clutch block 52 will be moved inwardly on the,shaft'48. The lever 55has pivotally secured to its lower end a link 55" that is likewiseconnected to a lever 58 that is journaled in a suitable bearing in thebase 42. The lever 58 has an offset end that terill? this foot pedalwill swing the lever 55 to move the clutch block 51 toward the center ofthe shaft 28v The rings 37 and 53, as well as the rings 38 and 54, areprovided with aligning openings, and through these openings there arepassed bolts 60. On the-ends of the bolts there arescrewed nuts 61 whichcontact with helical springs 62 on the outer portions of the said bolts.The springs 62 also contact with the rings 53 and 37,thereby forcing theopposite] disposed pairs of clutch blocks towar each other andmoving-the said clutch blocks to unclutching positions.

0n the shaft 28 there are freely ournaled twin drums, each being broadlyindicated by the numerals 63 and 64, respectively. As both of the drumsare of a similar construction, a detailed description of one may betaken as equally applicable to the other. Each drum has its body portionin the n.- ture of a tube 65 and each body 65 is centrally cored out toprovide an oil reservoir 66. The body is provided with a suitable oilinlet, and the oil is delivered onto roller bearings 67 that are seatedin annular grooves provided adjacent to the ends in the bore of thetube. llhe outer and reduced ends of the tubes 65 have their sidesflattened for reception in similar openings in the heads 68 and 69 forthe said drum. The heads 68, which are arranged at the confronting endsof the said drums 63 and 64, are in the nature of discs, and each ofthese discs is provided with an annular series of equidistantly spacedopenings K0, the purpose of which will be presently apparent. The outerheads 69 are also in the nature of discs, but are provided withperipheral flanges 71. The discs providin the heads 69 proper havesecured on their inner faces castings whose body portions are in thenature of discs 72; Each of the body portions is formed with anoutstanding hub 73 provided with an inwardly directed flange 74 thatconfronts with the outer end of the tubes 65 of the said drum. The boreof the hub coincides with the shape of the ends of the tubes 65 receivedthereinr The hub 73 is provided with oppositely arranged notches 75, theouter walls, of which are inclined. These notches are designed toreceive therein the lugs or projections 7 5' on the respective slidableclutch blocks 51 and 52, when either of the drums 63- or 64 is to belocked on the shaft.

The flanges 71 of each of the drums 63 and 64 have arranged therearoundbrake bands 76 and 7 7, respectively. One end of each of the brake bandsis anchored to a rod 78 whose ends aresupported in standards 7 9securedto andarising from the base. The second end of each of the brakebands is looped and through this loop there is received thecrankedportions 80 or 81, formed on shafts 82 and 83, respectively. Byreferenceto Figure 6 of the drawings it will be noted thatthe shaft 82 has itsstraight por tion's hollow so that the shaft 83 passes therethrough andfinds a bearing therein. The bearings for the shaft 82 are indicated bythe numerals 84, and these bearings may also support the uprights 79. Fixedly secured to the ends of the shafts 82 and 83, at points adjacentto the left hand jack posts 2, there are upwardly directed levers 85 and86, respectively. Thus by operating either of the levers the brake bandsof either of the drums may be tightened to regulate the speed of thesaid drums when the same have been clutched to the shaft 28.

The heads 70 of the respective drunls 63 and 64 are arranged at theopposite sides of the central post 3 of the frame, and fixed on thispost, directly above the boa ring thereon for the shaft 28 there is ahousing 87. The bore of this housing is rounded, and in the said borethere is freely arranged a cross sectionally rounded bolt 88 havingbeveled ends and which is provided with a stem 89 terminating in a head90. The stem 89 is normally received in the lower portion 91 of asubstantially V shape notched slot 92 inthe outer face of the'housing87. The stem 89 passes through an opening in a bar 93 which has an upperslotted portion 94 throughwhich there is passed a headed pin 95 thatanchors it to the post The upper therethrough and through this slotthere is 8000 feet, (adepth as yet unreached). The.

passed a headed pintle 99 secured in the bracket on one face of thecentral post 3. By swinging the lever 97 downwardly the stem 89 of thebolt 88 will be brought out of the notch 91 and arranged in the slot 92.By exerting a push or a pull on the lever 97 the bolt 88 may be movedinto one of the openings 70, on either of the heads 68 of the drums 63or 6 1, thus locking one of the drums from turning. The reverse movementof the lever 97 will cause the stem 89 to travel in the slot 92 and tobe again received in the notch 91, thus unlocking the drum.

The engine driven sprockets 10 and 11 onthe line shaft 1 are butted backto back and held in place by the splines for the clutch blocks 13 and14. "The sprocket 10 is larger than the sprocket 11 as shown inFigure 1. The clutch blocks 13 and 14 are alike and interchangeable, andas above stated, it is impossible to engage one clutch assembly Withoutfirst disengaging the other. The clutch blocks on the drum shaft 28 arelikewise alike and interchangeable and being arranged in pairs which areback to back they must ride in the proper direction either to clutch orunclutching positions. The drums, as previously stated, are also alikeand are interchangeable. The inside drum heads are preferably formed ofsemi-steel. The U or crank shafts associated with the brake bands eifecta positivegripping'of the said bands with the drum heads. The bands haveas bestos linings to insure the positive gripping engagement thereofwith the brake heads, and the levers for the brake shafts or rods arescrewed into heads which are arranged around the said rods, (see Figure6.)

The operating engine for the device has not been illustrated, but inFigure 1 of the drawings the numeral 101 designates a wheel foroperating the engine throttle and the numeral 102 indicates a rod, whichwhen actuated, will reverse the turning of the engine.

"We will suppose, for example, that the operator has 8 lines strung upand is drilling bit is dull and must be pulled out. The operator pullsthe rod 102 and reverses his engine. He, then pushes clutch lever 27 tobring the clutch block 16 out of clutching onfee gagement with thesprocket wheel 8 connectedn-"ith the rotary machine. He next pulls onlever25 tocause the clutch block 15 to engage with the clutch surface 13of the engine sprocket wheel 10 and steps on the pedals 46 orfiddepending upon which drum 83 or 64 he wishes to first use. At thesame time he pulls the lever for operating either the clutch block 51 or52, kicking one of drums to the shaft and likewise locking the otherdrum that is to be held stationary, byactuating the lever 9?. Bybringing the clutch 36 into engagement with the clutch surface on thesprocket wheel 80 he obtains a slow speed. 'With full steam ahead he ispulling with eight lines in low gean.

After pulling 1000 feet on the pipe theopfeet he may reverse thisprocedure, again by. dcclutching the sprocket wheel 11 and clutching thesprocket wheel 10 on the shaft. The drum is then driven .by thesprocketchain 31. At another 1000 feet the drum is caused to revolve ata faster speed by deelutching the. sprocket wheel 10 and clutchingthesprocket wheel 11 on theshaft 4, the drum shaft being still driven bythe sprocket chain 31. The pipe is new half out of the hole.

At this point the operator is safe to use the two drums, which have therespective ends of the lines or cables secured thereto. When using bothdrums the speed will be doubled, and-by operating the clutches 16 i and17, in a manner asabove described, four separate and distinct speeds mayhe imparted to the two drums. f i

In the first mentioned operation, that is when only one drum is driven,four different and distinct speeds are imparted to the drum, and at thesecond operation, that is when the drums'are locked togethbr on the drumshaft four separate and distinct speeds are imparted to the lockeddrums. Thus a great number of separate and distinct speeds of the drumsare provided for.

The advantages of my improvement over a similar construction will, it isbelieved he till perfectly apparent to those skilled in" the art towhich this invention relates, and while it have illustrated asatisfactory embodiment of my improved device my features of i11 ventionare capable of extended application and I do not wish to be limited tothe structure herein shown and described. It

is lo be understood that the clutch blocks 16, 17 and 18 on the lineshaft are alike and brakes are for the purpose of controlling the '1speed of rotation of the drums .when the said drums are unclutched fromthe shaft 28. The splines under the clutch blocks 52, 86,

51 and 35 offseteach other so that when the clutch blocks are disengagedthey will butt hack to back against themselves and against the splineends. The brake band crank shafts 82 and 83, should rig up 9 inches backof standards 79 (Figure 1)., while the top ends of the brake levers and86 come toits gether as disclosed by the drawings so that the operatormay actuate them simultaneously with one hand as will be apparent.

Having described the inventi0n,,I claim 1. In a draw works,the'combination of a frame, a shaft, two drums freely journaled on theshaft, said drums having their confronting heads provided each with anannular series of apertures, a bolt member mounted in the frame andmovable into one of the apertures of either head for locking the drumthereof against movement, said bolt being normally in inactive position,clutching means onthe shaft, operating means for said clutching means tocause the same'to engage with either of the drums to lock one or both,of the drums to the. shaft, and means for revolving the shaft atvarying predeteu mined speeds to impart like speeds to the drum or drumsclutched to the shaft.

2; In a draw works, the combination of two drums, freely journaled on ashaft, and a cable having its ends secured on each of said drums,- saiddrums having their confronting heads provided with spacedcircumferential apertures, a housing having a notch between said heads,a bolt member in the housing having a stem projecting through the notch,a lever operated means associated with the stem, for causing the latterto ride oneither end angle walls of'the notch to bring the bolt into oneof the openings on either head to lock the drum thereon against movementon the shaft, clutch means on the shaft engaging the outer faces of thedrums, pedal operated means for actuating said clutch,means for lockingone or both of the drums on the shaft, and means for revolving the shaftat varying predetermined speeds for imparting like motion to the drum ordrums clutched thereto. 3. In a draw works, a frame, a drum shaftjournaled on the frame, twin drums on the drum shaft, means between theconfrontin heads of the drums engageable with said brake bands and thelever actuating means for operating the. crank shaft.

In testimony whereof I afiix my si nature. HAROLD B. ZIEG ER.

heads for locking either of the drums to the

